TITLE:
Adsorption of Nickel in Aqueous Solution onto Natural Maghnite
AUTHORS:
Mohamed Amine Zenasni, Said Benfarhi, André Merlin, Stéphane Molina, Béatrice George, Bahia Meroufel
KEYWORDS:
Natural Maghnite; Ni(II); Adsorption
JOURNAL NAME:
Materials Sciences and Applications,
Vol.4 No.2,
February
28,
2013
ABSTRACT:
Maghnite clay obtained from Tlemcen, Algeria was investigated to remove heavy metal ion from wastewater. Thus, the present study includes the adsorption of Ni(II) in aqueous solution on maghnite clay through the process of adsorption under various conditions (with variable concentration of metal ion, temperature, pH and mixing time). Increasing pH favours the removal of metal ions till they are precipitated as the insoluble hydroxides. The uptake is rapid with maximum adsorption being observed within 10 min for Ni(II). In addition, the results obtained from adsorption isotherm indicated that these data can be better fitted with the Langmuir and Freundlich equations than the Dubinin-Radushke- vich (D-R) equation.